Different plants do different things to your biology, and most of them want to kill you.⁠ ⁠ Raw kale and spinach are high in oxalates

Most Alkaline Foods on Earth (Top Fifteen)

Spinach vs. Kale: Is One Healthier?

What Vegetables are Bad For You and Why - Dr. Robert Kiltz

How To Flush Oxalates From The Body: The Oxalate Detox

Oxalic acid (oxalate): What it is, risks, how to avoid it, and more

Is it unhealthy to eat a lot of raw spinach? - Quora

Is Kale Low Oxalate? – Low Oxalate Info

Oxalates in Kale vs. Spinach

Low Oxalate Vegetables: Kale, Asparagus, Broccoli and Other Greens – Low Oxalate Kitchen

Is Kale Low Oxalate? – Low Oxalate Info

High Oxalate Greens and Kidney Stones

Oxalates in spinach – Botanical online

Your Vegetables Want To Kill You. The surprising truth about plant toxins, by Keenan Eriksson, The Carnivore Curation